Investigating da Thermistor (4.1)

Question 1

What is required to investigate a thermistor?

Answer 1

resistor, thermistor, voltmeter, power supply, bunsen burner, thermometer, bucket o’ ice

Question 2

How would you set up a practical to investigate an LDR or thermistor?

Answer 2

Set up a potential divider circuit with a thermistor/LDR as one of the resistors.
For thermistor:
- Thermistor in an ice bucket being heated by a Bunsen burner
For an LDR:
- LDR with a lamp moving closer and further away

Question 3

What are we measuring for the thermistor / LDR practical?

Answer 3

Voltage across them with changing temperature/distance of lamp